Radio Shack Race Scanner owner manual Operation, Turning on the Scanner Setting Squelch

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OPERATION

TURNING ON THE SCANNER AND

SETTING SQUELCH

Note: Make sure an antenna is connected to the scanner before you turn it on.

1. Turn SQUELCH fully counterclockwise.

PR O-7 4

V O L U M E S Q U E L C H

O F F

2.Turn VOLUME clockwise until it clicks and you hear a hissing sound.

P R O - 7 4

V O L U M E S Q U E L C H

OFF

3.Turn SQUELCH clockwise, then leave it set to a point just after the hissing sound stops.

Notes:

•If you have not stored frequencies into any channels, the scanner does not scan.

•If the scanner picks up unwanted, partial, or very weak transmis- sions, turn SQUELCH clockwise to decrease the scanner's sensitiv- ity to these signals. If you want to listen to a weak or distant station, turn SQUELCH counterclockwise.

•If SQUELCH is adjusted so you always hear a hissing sound, the scanner does not scan properly.

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Contents PRO-74 100-Channel VHF/UHF/Air/800 MHz Race Scanner Features Page Frequency Range Step Transmission MHz KHz Scanning Legally FCC NoticeContents General Guide to Scanning Special FeaturesTroubleshooting Care and Maintenance SpecificationsPreparation Power SourcesUsing Internal Batteries Page Charging Nickel-Cadmium Batteries Using Standard AC Power Using Vehicle Battery Power Connecting AN Antenna Connecting an Optional Antenna Connecting AN Earphone Headphones Connecting AN Extension SpeakerListening Safely Traffic SafetyAttaching the Belt Clip Look AT the Keypad Understanding Your ScannerPage Look AT the Display Page Name Typical Usage Frequency Range MHz Service BanksUnderstanding Banks Memory BanksHAM Operation Turning on the Scanner Setting SquelchPress E to store the frequency into the channel Storing Known Frequencies Into ChannelsFinding and Storing Active Frequencies Searching the Service BanksSearching from a Selected Frequency Storing Active Frequencies Search Skip MemoryManually Selecting a Channel Deleting a Frequency from a Channel Scanning ChannelsListening to Weather Broadcasts Storing a CAR Number and Frequency Using the PRO-74 AT the RacesAdding Frequencies to a Car Number Deleting a Frequency from a Car Number Scanning by CAR NumberViewing Frequencies Associated with a Car Number Finding What CAR Numbers are in What Channels Priority Special FeaturesTurning Memory Banks on and OFF Locking OUT ChannelsN K Normal Search Hypersearch Using the KeylockUsing the Display Backlight Changing Search SpeedsTurning the KEY Tone OFF/ON Turning the Battery Save Function OFF/ONSkipping Data Signals Canadian Weather Frequencies General Guide to ScanningGuide to Frequencies National Weather FrequenciesBirdie Frequencies UHF Band Guide to the Action BandsTypical Band Usage VHF BandAbbreviations Band AllocationPrimary Usage Very High Frequency VHF Meter Amateur Band- 50-54 MHz Ultra High Frequency UHF Conventional Systems Band Locally Assigned Frequency ConversionProblem Possible Cause Remedy TroubleshootingBATT.Lo Resetting the ScannerCare and Maintenance Specifications RadioShack Division of Tandy Corporation Fort Worth, Texas Limited One-Year Warranty